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4 July, 16:16

A contractor digs a rectangular hole that is 40 feet long and 10 1/2 feet deep. what is the width of the hole if 6510 cubic feet of dirt is removed?

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  1. 4 July, 16:27
    0
    Well, since we know (or should know) that cubic feet is found by LxWxH. We take 6510 / 10.5=620 then take the 620 / 40 = 15.5. Thus your width is equal to 15.5ft
  2. 4 July, 16:30
    0
    40 * 10.5 * w = 6510

    420 w = 6510

    w = 15.5 ft
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